Left in bar, is hard to get out (7)
I believe the answer is:
publish
'get out' is the definition.
(I've seen this before)
'left in bar is hard' is the wordplay.
'left' becomes 'l' (common abbreviation).
'in' means one lot of letters goes inside another.
'bar' becomes 'pubis' (I can't explain this - if you can you should give a lot more credence to this answer).
'is hard' becomes 'h'.
'l' put within 'pubis' is 'publis'.
'publis'+'h'='PUBLISH'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for publish that I've seen before include "Get into print" , "Issue, make known" , "Make generally known" , "Damned if I do!" , "Report" .)